Improved device for holding plates of glass



Q dnn mimi tateaatent iii weet/@aa- IMPROVED DEVICE FOR HOLDING PLATES OF GLASS.

The Schedule referred to in these Letters Patent making part of the same.

To all whom 'it may concern.-

Be it known that I, THOMAS JONES, of. the city, county, and State of New York, have invented a new and useful Device for HoldingPlates of Glass whilst cutting the same; and I do hereby declare the following to be a full, clear, and exact description thereof, sucient to enable others skilled in the art to which my invention appertains, to make and use the same, reference being had to the accompanying drawings, forming part of this specification, in which my invention is represented by a side elevation.

The nature of my invention consists in suspending plates of glass from a balanced beam, whereby the operator is enabled to hold the glass on the stone, and manipulate the plate with ease, while ornamenting the same by process ot grinding.

Heretofore, it has been almost if not wholly impossible to ornament large plates of glass by grinding the saine, because the operator was not able, on account of their size, to lift and handle them with sufficient ease to insure perfect work.

The object of my invention is to obviate this diculty, which is accomplished in the manner above stated, as has been practically demonstrated.

In order that others may so understand my invention as to be able to make and use my apparatus, I will now proceed to describe the same more fully in det-ail, referring to the accompanying drawing.

In the drawings- A is a balance-beam, secured between the sides a of a frame, B, by means of a pivot, b, passing through the same. p

The upper end of this frame B is provided with ,swivel-hook, (l, which hooks into a hole in a suspending-bar, D, which is itself' secured to the ceilingv in any suitable manner.

On the shorter arm of the balance-beam B, I place a sliding weight or weights E, which are provided with set-screws c, for securing the saine on said beam B when ad]- usted.

A fixed stop, d, is placed at the extreme end of th shorter arm of the balance-beam B, to limit the movement of the weights E.

From the longer arm of the balance-beam B, a rope, or chain F, depends, the lower end of which may be provided with a hook, G.

Olasps H H, for holding the glass- I, are suspended from the hook G by any suitable means.

In using my invention, a plate of glass, I, is irst placed within the 4clasps H H, said clasps being drawn together until they are suiciently tight to keep the glass steady in the hands' ofthe workman. The weight 0r weights are then moved backward or forward, as the case may be, until the glass is evenly balanced and stands in mid-air without the aid of the workman, therebyremoving all labor.

The operator may then turn and hold the glass in any position he may desire, the swivel-screw C, in the upper end of frame B, greatly facilitating the movement of the same.

In performing the operation of grinding, the glass I is held in any position the operator may desire over the grinding-stone, which is shown in red.

. It will be readily perceived that my invention. is both simple and useful,`doing away with the old system of holding the glass in the hands, thereby saving much time and labor.

By this device, large plates of glass, which it was heretofore impossible to ornament by grinding with a' stone, may be as easily handled as those of smaller di'- mensions.

The advantages of my improvement will be appreciated by those engaged in the oru'amentationof glass by grinding, and will be obvious to all.

I wish to state that I do not limit myself to the precise construction and arrangement of parts as: herein described, as these may be varied somewhat, without departing from the nature of my invention; still, I have found the' apparatus herein set forth to operate with very good results.

I do not claim, broadly, the use of the balanced beam, for this is an old device; but

What I do claim, is'- The device for handling-plates of glass, consisting of beam A, adjustable weight- E, swivel O, hook G and clasps H, combined. and operating as described.

To the above speciiication of my-invent-ion, I have signed my name, this 21st day of January, 1869, in the presence'of two subscribing witnesses. p

Witnesses: THOMAS JONES.

JAMES W. POE, SAML. TORBERT. 

